Stream Realty Partners reached a construction milestone in what it says will be the first six-story “tiltwall” office building in Texas.

The top panel was hoisted into place Tuesday at Sierra Pines II, a 154,213-square-foot building going up at 1575 Sawdust Road in The Woodlands. Completion is planned in September.

Tiltwall buildings, so named because concrete panels are lifted into place to form the structure, have traditionally been associated with boxy low industrial buildings. But they’re gaining in popularity and style in office buildings, and getting taller. See the Deal of the Week story from September 2013 on the groundbreaking here.

The building will feature a two-story lobby, floor-to-ceiling windows, and grand views from upper floors to give the building the feel of a typical cast in place office building. The complex is landscaped with multiple water features and an expansive garden.

There are “no tenants to report” yet, according to Stream Realty Partners, which broke ground on a “spec” basis. That’s something developers seem to be comfortable with lately, especially in areas such as The Woodlands and the Energy Corridor where occupancy rates remain high.

Stream Realty Partners is the developer and owner. Powers Brown designed the building and EE Reed is the general contractor.